Add-cart.php Num -

Leo swore under his breath. No BEGIN TRANSACTION . No FOR UPDATE . Just two naïve queries and a prayer. The three simultaneous POSTs had each run the SELECT , seen an empty cart, and each fired an INSERT . Three rows. Same product.

Three requests. Same session ID. Same product SKU: DRN-7X . add-cart.php num

The server logs didn't blink. They never did. But for Leo, the silent, green-on-black text of /var/log/nginx/access.log might as well have been a screaming headline. Leo swore under his breath

He checked gh0st_walker 's IP address. Traced it back to a residential block in Akron, Ohio. Not a botnet. Not a competitor. Someone sitting in a basement, probably using a simple bash script: seen an empty cart

He opened the source file: add-cart.php .